| … | |
… | |
| 71 | SizeX = xsize / 2 - 2; |
71 | SizeX = xsize / 2 - 2; |
| 72 | SizeY = ysize / 2 - 2; |
72 | SizeY = ysize / 2 - 2; |
| 73 | |
73 | |
| 74 | /* select random options if necessary */ |
74 | /* select random options if necessary */ |
| 75 | if (option == 0) |
75 | if (option == 0) |
| 76 | option = rndm (MAX_SPIRAL_OPT); |
76 | option = rmg_rndm (MAX_SPIRAL_OPT); |
| 77 | |
77 | |
| 78 | /* the order in which these are evaluated matters */ |
78 | /* the order in which these are evaluated matters */ |
| 79 | |
79 | |
| 80 | /* the following two are mutually exclusive. |
80 | /* the following two are mutually exclusive. |
| 81 | pick one if they're both set. */ |
81 | pick one if they're both set. */ |
| 82 | if ((option & REGULAR_SPIRAL) && (option & FIT_SPIRAL)) |
82 | if ((option & REGULAR_SPIRAL) && (option & FIT_SPIRAL)) |
| 83 | { |
83 | { |
| 84 | /* unset REGULAR_SPIRAL half the time */ |
84 | /* unset REGULAR_SPIRAL half the time */ |
| 85 | if (rndm (2) && (option & REGULAR_SPIRAL)) |
85 | if (rmg_rndm (2) && (option & REGULAR_SPIRAL)) |
| 86 | option -= REGULAR_SPIRAL; |
86 | option -= REGULAR_SPIRAL; |
| 87 | else |
87 | else |
| 88 | option -= FIT_SPIRAL; |
88 | option -= FIT_SPIRAL; |
| 89 | } |
89 | } |
| 90 | |
90 | |
| 91 | xscale = yscale = MAX_FINE; /* fine spiral */ |
91 | xscale = yscale = MAX_FINE; /* fine spiral */ |
| 92 | |
92 | |
| 93 | /* choose the spiral pitch */ |
93 | /* choose the spiral pitch */ |
| 94 | if (!(option & FINE_SPIRAL)) |
94 | if (!(option & FINE_SPIRAL)) |
| 95 | { |
95 | { |
| 96 | float pitch = (rndm (5)) / 10. + 10. / 22.; |
96 | float pitch = (rmg_rndm (5)) / 10. + 10. / 22.; |
| 97 | |
97 | |
| 98 | xscale = yscale = pitch; |
98 | xscale = yscale = pitch; |
| 99 | } |
99 | } |
| 100 | |
100 | |
| 101 | if ((option & FIT_SPIRAL) && (xsize != ysize)) |
101 | if ((option & FIT_SPIRAL) && (xsize != ysize)) |
